Xantrex Technology 2500 - Manual (Page 38)

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Power Sharing The ability of the charger to
reduce its output when the AC power being
consumed by the charger and external AC
loads connected to the output of the inverter
are in excess of the input breaker rating.
Volt The unit of measure for electric potential.
Watt The unit for measuring electrical power,
i.e., the rate of doing work, in moving electrons
by or against an electric potential.
Watt-Hour (Watt-HR, WH) The unit for measur-
ing electrical energy which equals Watts x
Hours.
Wet Cell Battery A type of battery that uses
liquid as an electrolyte. The wet cell battery
requires periodic maintenance; cleaning the
connections, checking the electrolyte level and
performing an equalization cycle.
Equalize Charge A controlled overcharge of
the batteries which brings all cells up to the
same voltage potential, extends the battery life,
restores capacity and mixes the electrolyte.
Gel Cell Battery A type of battery that uses a
gelled electrolyte solution. These batteries are
sealed and are virtually maintenance-free. Not
all sealed batteries are the gel cell type.
GFCI (Ground Fault Circuit Interrupter) A
protective device that rapidly de-energizes a
circuit when current to ground exceeds a prede-
termined value.
Ground The reference potential of a circuit. In
automotive use, the result of attaching one
battery cable to the body or frame which is used
as a path for completing a circuit in lieu of a
direct wire from a component. This method is
not suitable for connecting the negative cable
of the inverter to ground. Instead, route the
cable directly to the negative terminal of the
battery.
LED (Light Emitting Diode) Indicator light.
Negative Designating or pertaining to electrical
potential. The negative terminal is the point
from which electrons flow during discharge.
Ohm A unit for measuring electrical resistance.
Ohm's Law Expresses the relationship be-
tween Voltage (V), Current (I) in an electrical
circuit with resistance (R). It can be expressed
as follows: V=IR. If
any two of the three
values are known, the third value can be calcu-
lated by using the above formula.
Positive Designating or pertaining to electrical
potential; opposite of negative. The positive
battery terminal is the point where electrons
return to the battery during discharge.
GLOSSARY
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